Lespedeza bicolor is a sort of perennial deciduous shrub with high adaptability and tolerance against adversity.It is a good feed of plant which belongs to legume.Besides,it has a great deal of potential values.4CL is a key enzyme during the systhesis process of lignin.We can decrease the content of ligin of Lespedeza bicolor by transferring antisense gene of 4CL into its genomic.It is with a remarkable significance for quality improving of Lespedeza bicolor feeds by decreaing the content of lignin....